32.5-mg tab: Concomitant use w/ other CNS depressants including alcohol. Caution in operating machinery or driving. 65-mg tab: Avoid alcohol; concomitant use w/ other CNS depressants, anticonvulsants, anticoagulants & OCs. Porphyria, hepatic, renal & resp disorder. Prolonged use. May affect ability to drive or operate machinery. Pregnancy & lactation. Childn. Elderly.